TTW1 Universal Service
Replacement Blower
M1TW Series
Disconnect (2) flag terminals and tubing
Step 7.from pressure switch to remove.
b.) Replace the current pressure switch ONLY IF the model is for high altitude (2001 ft. & above).
Warning: | Failure to replace universal blower pressure |
| switch for high altitude will result in improper |
| water heater operation. |
|
|
| i. For high altitude applications, the |
| factory installed pressure switch |
| must be replaced. The correct |
| pressure switch is P/N |
| |
| |
| c.) When installing the high altitude |
| pressure switch, be sure to reconnect |
| the pressure switch tubing to both the |
| pressure tap and the switch itself. |
| Also, reconnect the wires for the |
| pressure switch circuit to the new |
| pressure switch. Ensure that |
| the tubing is not kinked. |
Step 8. | a.) Ensure that once in place, the pressure |
| switch should be mounted such that its |
| diaphragm is in the vertical position. |
Choose corresponding pressure switch from kit. Verify correct P/N and setting on label to match this model’s requirements, as shown in Step 7b.
Be sure to reconnect
tubing and (2) flag
terminals.
Verify electrical |
|
and tubing | Mount in vertical |
connections. | position using |
| bracket. |
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